[chore] [receiver/bigip] Use confighttp.NewDefaultClientConfig instead of manually creating struct (open-telemetry#35586)

**Description:**
This PR makes usage of `NewDefaultClientConfig` instead of manually
creating the confighttp.ClientConfig struct.

**Link to tracking Issue:** open-telemetry#35457

Author: mackjmr

receiver/bigipreceiver/client_test.go

@@ -38,6 +38,18 @@ const (
 )
 
 func TestNewClient(t *testing.T) {
+	clientConfig := confighttp.NewDefaultClientConfig()
+	clientConfig.TLSSetting = configtls.ClientConfig{}
+	clientConfig.Endpoint = defaultEndpoint
+
+	clientConfigNonExistentCA := confighttp.NewDefaultClientConfig()
+	clientConfigNonExistentCA.Endpoint = defaultEndpoint
+	clientConfigNonExistentCA.TLSSetting = configtls.ClientConfig{
+		Config: configtls.Config{
+			CAFile: "/non/existent",
+		},
+	}
+
 	testCase := []struct {
 		desc        string
 		cfg         *Config
@@ -49,14 +61,7 @@ func TestNewClient(t *testing.T) {
 		{
 			desc: "Invalid HTTP config",
 			cfg: &Config{
-				ClientConfig: confighttp.ClientConfig{
-					Endpoint: defaultEndpoint,
-					TLSSetting: configtls.ClientConfig{
-						Config: configtls.Config{
-							CAFile: "/non/existent",
-						},
-					},
-				},
+				ClientConfig: clientConfigNonExistentCA,
 			},
 			host:        componenttest.NewNopHost(),
 			settings:    componenttest.NewNopTelemetrySettings(),
@@ -66,10 +71,7 @@ func TestNewClient(t *testing.T) {
 		{
 			desc: "Valid Configuration",
 			cfg: &Config{
-				ClientConfig: confighttp.ClientConfig{
-					TLSSetting: configtls.ClientConfig{},
-					Endpoint:   defaultEndpoint,
-				},
+				ClientConfig: clientConfig,
 			},
 			host:        componenttest.NewNopHost(),
 			settings:    componenttest.NewNopTelemetrySettings(),

receiver/bigipreceiver/config_test.go

@@ -19,6 +19,11 @@ import (
 )
 
 func TestValidate(t *testing.T) {
+	clientConfig := confighttp.NewDefaultClientConfig()
+	clientConfig.Endpoint = defaultEndpoint
+
+	clientConfigInvalid := confighttp.NewDefaultClientConfig()
+	clientConfigInvalid.Endpoint = "invalid://endpoint:  12efg"
 	defaultConfig := createDefaultConfig().(*Config)
 	defaultConfig.Username = "otelu"
 	defaultConfig.Password = "otelp"
@@ -31,9 +36,7 @@ func TestValidate(t *testing.T) {
 		{
 			desc: "missing username, password, and invalid endpoint",
 			cfg: &Config{
-				ClientConfig: confighttp.ClientConfig{
-					Endpoint: "invalid://endpoint:  12efg",
-				},
+				ClientConfig:     clientConfigInvalid,
 				ControllerConfig: scraperhelper.NewDefaultControllerConfig(),
 			},
 			expectedErr: multierr.Combine(
@@ -45,10 +48,9 @@ func TestValidate(t *testing.T) {
 		{
 			desc: "missing password and invalid endpoint",
 			cfg: &Config{
-				Username: "otelu",
-				ClientConfig: confighttp.ClientConfig{
-					Endpoint: "invalid://endpoint:  12efg",
-				}, ControllerConfig: scraperhelper.NewDefaultControllerConfig(),
+				Username:         "otelu",
+				ClientConfig:     clientConfigInvalid,
+				ControllerConfig: scraperhelper.NewDefaultControllerConfig(),
 			},
 			expectedErr: multierr.Combine(
 				errMissingPassword,
@@ -58,10 +60,8 @@ func TestValidate(t *testing.T) {
 		{
 			desc: "missing username and invalid endpoint",
 			cfg: &Config{
-				Password: "otelp",
-				ClientConfig: confighttp.ClientConfig{
-					Endpoint: "invalid://endpoint:  12efg",
-				},
+				Password:         "otelp",
+				ClientConfig:     clientConfigInvalid,
 				ControllerConfig: scraperhelper.NewDefaultControllerConfig(),
 			},
 			expectedErr: multierr.Combine(
@@ -72,11 +72,9 @@ func TestValidate(t *testing.T) {
 		{
 			desc: "invalid endpoint",
 			cfg: &Config{
-				Username: "otelu",
-				Password: "otelp",
-				ClientConfig: confighttp.ClientConfig{
-					Endpoint: "invalid://endpoint:  12efg",
-				},
+				Username:         "otelu",
+				Password:         "otelp",
+				ClientConfig:     clientConfigInvalid,
 				ControllerConfig: scraperhelper.NewDefaultControllerConfig(),
 			},
 			expectedErr: multierr.Combine(
@@ -86,11 +84,9 @@ func TestValidate(t *testing.T) {
 		{
 			desc: "valid config",
 			cfg: &Config{
-				Username: "otelu",
-				Password: "otelp",
-				ClientConfig: confighttp.ClientConfig{
-					Endpoint: defaultEndpoint,
-				},
+				Username:         "otelu",
+				Password:         "otelp",
+				ClientConfig:     clientConfig,
 				ControllerConfig: scraperhelper.NewDefaultControllerConfig(),
 			},
 			expectedErr: nil,

receiver/bigipreceiver/factory.go

@@ -29,14 +29,14 @@ func NewFactory() receiver.Factory {
 
 // createDefaultConfig creates a config for Big-IP with as many default values as possible
 func createDefaultConfig() component.Config {
+	clientConfig := confighttp.NewDefaultClientConfig()
+	clientConfig.Endpoint = defaultEndpoint
+	clientConfig.Timeout = 10 * time.Second
 	return &Config{
 		ControllerConfig: scraperhelper.ControllerConfig{
 			CollectionInterval: 10 * time.Second,
 		},
-		ClientConfig: confighttp.ClientConfig{
-			Endpoint: defaultEndpoint,
-			Timeout:  10 * time.Second,
-		},
+		ClientConfig:         clientConfig,
 		MetricsBuilderConfig: metadata.DefaultMetricsBuilderConfig(),
 	}
 }

receiver/bigipreceiver/factory_test.go

@@ -19,6 +19,9 @@ import (
 )
 
 func TestNewFactory(t *testing.T) {
+	clientConfig := confighttp.NewDefaultClientConfig()
+	clientConfig.Endpoint = defaultEndpoint
+	clientConfig.Timeout = 10 * time.Second
 	testCases := []struct {
 		desc     string
 		testFunc func(*testing.T)
@@ -39,10 +42,7 @@ func TestNewFactory(t *testing.T) {
 					ControllerConfig: scraperhelper.ControllerConfig{
 						CollectionInterval: 10 * time.Second,
 					},
-					ClientConfig: confighttp.ClientConfig{
-						Endpoint: defaultEndpoint,
-						Timeout:  10 * time.Second,
-					},
+					ClientConfig:         clientConfig,
 					MetricsBuilderConfig: metadata.DefaultMetricsBuilderConfig(),
 				}
 

receiver/bigipreceiver/scraper_test.go

@@ -27,6 +27,18 @@ import (
 )
 
 func TestScraperStart(t *testing.T) {
+	clientConfig := confighttp.NewDefaultClientConfig()
+	clientConfig.TLSSetting = configtls.ClientConfig{}
+	clientConfig.Endpoint = defaultEndpoint
+
+	clientConfigNonExistentCA := confighttp.NewDefaultClientConfig()
+	clientConfigNonExistentCA.Endpoint = defaultEndpoint
+	clientConfigNonExistentCA.TLSSetting = configtls.ClientConfig{
+		Config: configtls.Config{
+			CAFile: "/non/existent",
+		},
+	}
+
 	testcases := []struct {
 		desc        string
 		scraper     *bigipScraper
@@ -36,14 +48,7 @@ func TestScraperStart(t *testing.T) {
 			desc: "Bad Config",
 			scraper: &bigipScraper{
 				cfg: &Config{
-					ClientConfig: confighttp.ClientConfig{
-						Endpoint: defaultEndpoint,
-						TLSSetting: configtls.ClientConfig{
-							Config: configtls.Config{
-								CAFile: "/non/existent",
-							},
-						},
-					},
+					ClientConfig: clientConfigNonExistentCA,
 				},
 				settings: componenttest.NewNopTelemetrySettings(),
 			},
@@ -53,10 +58,7 @@ func TestScraperStart(t *testing.T) {
 			desc: "Valid Config",
 			scraper: &bigipScraper{
 				cfg: &Config{
-					ClientConfig: confighttp.ClientConfig{
-						TLSSetting: configtls.ClientConfig{},
-						Endpoint:   defaultEndpoint,
-					},
+					ClientConfig: clientConfig,
 				},
 				settings: componenttest.NewNopTelemetrySettings(),
 			},